What this tool does
Enter two dates of birth. The tool finds each person’s Chinese zodiac animal and element, then compares the two animals using the pairings that Chinese astrology has long used, and the two year elements using the five-element cycles. It explains each link in plain words and shows how it was worked out. It gives no score, on purpose.
Step one: each date into its Chinese year
The Chinese year begins at the lunar new year, not on 1 January, so a birthday in January or February may belong to the previous animal. The tool uses the lunar new year dates for 1901 to 2100 from the Hong Kong Observatory conversion table to place each date, then finds the animal and element in the usual way. The Chinese zodiac calculator shows that step by itself.
Step two: the traditional pairings
Chinese astrology groups the twelve animals in several ways, and a pair can fall under more than one at once.
- Trines (the three harmonies). The animals are split into four groups of three, each four years apart: Rat, Dragon and Monkey; Ox, Snake and Rooster; Tiger, Horse and Dog; Rabbit, Goat and Pig. Two animals in the same trine are read as sharing an outlook.
- Six harmonies, or secret friends. Six pairs are read as quietly supportive: Rat and Ox, Tiger and Pig, Rabbit and Dog, Dragon and Rooster, Snake and Monkey, Horse and Goat.
- Clashes. Animals six years apart sit opposite each other on the wheel, such as Rat and Horse or Ox and Goat. They are read as magnetic and frictional at once.
- Harms. Six pairs, among them Rat and Goat, Ox and Horse, Tiger and Snake, Rabbit and Dragon, Monkey and Pig, and Rooster and Dog, are read as small repeated misunderstandings.
- Penalties. Three groups: Tiger, Snake and Monkey; Ox, Goat and Dog; and the pair Rat and Rabbit. Four animals, Dragon, Horse, Rooster and Pig, are also said to be hard on themselves, so two of the same animal can amplify that.
A pair with none of these is simply an ordinary pairing. The tradition does not say it is bad; it is the largest group.
Step three: the elements
Each Chinese year also has an element: Wood, Fire, Earth, Metal or Water. Two cycles describe how elements relate. In the generating cycle, Wood feeds Fire, Fire makes Earth, Earth bears Metal, Metal carries Water and Water nourishes Wood. In the controlling cycle, Wood parts Earth, Earth dams Water, Water quenches Fire, Fire melts Metal and Metal cuts Wood. The tool reports which of these applies to your two year elements, or notes that the elements are the same or unlinked.
How to read the result
Treat the result as a conversation starter. Chinese zodiac pairings are folklore, and writers differ on how heavily to weigh each one and on whether the old texts supported them as strongly as modern websites imply. Plenty of couples with a clash have long, happy relationships, and plenty of secret friends do not. Nothing here says that two people should or should not be together, or that any relationship will go well or badly. If you would like another way to compare two people, try the zodiac compatibility tool by Sun sign, which also gives no score.
Frequently asked questions
↳ Which Chinese zodiac signs are most compatible?
Traditionally the trines and the six secret-friend pairs are called the most harmonious, for example Rat with Dragon or Monkey, and Rat with Ox. These are traditional readings, not guarantees, and the tool shows every link that applies to your pair.
↳ What does it mean if two animals clash?
In the tradition, animals six years apart sit opposite on the zodiac wheel and are read as very different in instinct. That can create friction or a strong attraction between opposites. It does not mean a relationship cannot work.
↳ Why is there no compatibility score?
Because the pairings are folklore, and a number would suggest more precision than the tradition has. The tool lists what the tradition says about each link and leaves the judgement to you.
↳ Do the elements matter as much as the animals?
Writers differ. Some give the animal pairing most weight and the year element a secondary role; others read both together. The tool shows both and does not rank them.
↳ Does my birthday in January or February change the result?
It can. The Chinese year starts at the lunar new year, so a birthday before it belongs to the previous animal. The tool places each date in its Chinese year before comparing.